Secunia Security Advisory – Jon Oberheide has reported two vulnerabilities in CoSign, which can be exploited by malicious users to hijack other user sessions and by malicious people to bypass certain security restrictions.
You can download this advisory from the following link: https://packetstormsecurity.com/files/download/55858/sa24845.txt
Source: https://packetstormsecurity.com/files/55858/Secunia-Security-Advisory-24845.html